In order to fetch Mathcad 15.0 Trial license the user needs to follow the below steps:
1. Run PTC Mathcad License Wizard and browse to default location Installation location "C:\Program Files (x86)\Mathcad\Mathcad 15\mclicense" (Right click mouse button #Run as administrator) or Run Mathcad 15 as administrator.
2. As displayed in numerical order, select options highlighted in below images:
3. Complete Mathcad 15 Trial license configuration by selecting #Finish :
*Important the system will fetch the User Name and Password on own*